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May 8th, 2015, 01:43 PM  #1 
Member Joined: Jan 2015 From: Norway Posts: 95 Thanks: 1  square senteces three formulas one task
Task 1.18 F) (r5s)^2 + 7(2x3r)^2  (r5s)(2s3r)= 67r^2  111rs + 63s^2. I get confused of the letters and i get bad answers when i try to solve the task. 
May 9th, 2015, 01:27 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,768 Thanks: 699  
May 9th, 2015, 05:23 PM  #3  
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,594 Thanks: 1038 
Changed your 2x to 2s: Quote:
handle it properly and you'll end up with 67r^2  111rs + 63s^2 as shown. We're not here to do your dirty work  

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formulas, senteces, square, task 
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